Abstract
The title compounds Si(C4H5O)4 (1) and Ge(C4H5O)4 (2) are di-hydro-furyl compounds of silicon and germanium and are useful building blocks for the functionalization of these elements. Both structures crystallize in space group P21/n in the monoclinic crystal system with two mol-ecules in the asymmetric unit: the Si and Ge atoms adopt slightly distorted tetra-hedral geometries, while the C4H5O moieties exhibit shallow envelope conformations. Through a Hirshfeld surface analysis of the structures, inter-actions within the crystal packing could be elucidated: compound 1 features a polymeric chain in the (101) plane via C-H⋯O hydrogen bonds whereas in 2 C-H⋯O hydrogen bonds create a polymeric chain in the (010) plane.
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